YP0202/WpfApp1/MainWindow.xaml

<Window x:Class="WpfApp1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp1"
        mc:Ignorable="d"
        Background="Bisque"
        Title="Вычисление функции" Height="450" Width="800">
    <Grid>
        <TextBlock x:Name="result_txt" HorizontalAlignment="Left" FontWeight="Bold" Margin="553,100,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="229"/>
        <TextBlock TextWrapping="Wrap" RenderTransformOrigin="2.122,9.812" Margin="584,59,44,339" FontWeight="Bold" Text="Цикл с предусловием"/>
        <TextBlock TextWrapping="Wrap" Text="Цикл с параметром" FontWeight="Bold" RenderTransformOrigin="2.122,9.812" Margin="323,59,306,339"/>
        <TextBlock x:Name="result2_txt" HorizontalAlignment="Left" Margin="298,100,0,0" FontWeight="Bold" TextWrapping="Wrap" VerticalAlignment="Top" Width="229"/>
        <Button Content="Цикл for" HorizontalAlignment="Left" FontWeight="Bold" Margin="62,155,0,0" VerticalAlignment="Top" Width="86" Height="28" Click="Button_Click"/>
        <Button Content="Цикл while" HorizontalAlignment="Left" FontWeight="Bold" Margin="62,237,0,0" VerticalAlignment="Top" Width="86" Height="28" Click="Button_Click_1"/>
        <Button Content="О программе" HorizontalAlignment="Left" FontWeight="Bold" Margin="61,298,0,0" VerticalAlignment="Top" Width="87" Height="25" Click="Button_Click_2"/>
        <Button Content="Инструкция" HorizontalAlignment="Left" FontWeight="Bold" Margin="61,342,0,0" VerticalAlignment="Top" Width="87" Height="25" Click="Button_Click_3"/>
    </Grid>
</Window>